import test from 'node:test';
import assert from 'node:assert/strict';

import { deriveQuoteOutcomeRecords } from '../src/core/quote-outcomes.mjs';

const BTC = {
  assetId: 'nep141:btc.omft.near',
  symbol: 'BTC',
  decimals: 8,
};
const EURE = {
  assetId: 'nep141:eure.omft.near',
  symbol: 'EURe',
  decimals: 18,
};

function submittedResult(quoteId, observedAt = '2026-04-02T18:13:30.000Z') {
  return {
    observed_at: observedAt,
    payload: {
      quote_id: quoteId,
      command_id: `cmd-${quoteId}`,
      decision_id: `decision-${quoteId}`,
      status: 'submitted',
      result_code: 'quote_response_ok',
    },
  };
}

function exactOutCommand(quoteId) {
  return {
    observed_at: '2026-04-02T18:13:29.000Z',
    payload: {
      quote_id: quoteId,
      command_id: `cmd-${quoteId}`,
      decision_id: `decision-${quoteId}`,
      pair: `${BTC.assetId}->${EURE.assetId}`,
      direction: 'eure_to_btc',
      request_kind: 'exact_out',
      asset_in: BTC.assetId,
      asset_out: EURE.assetId,
      amount_out: '21000021200021200022',
      quote_output: {
        amount_in: '37014',
      },
      min_deadline_ms: 60000,
    },
  };
}

function inventorySnapshot(observedAt, spendable) {
  return {
    observed_at: observedAt,
    payload: {
      inventory_id: `inventory-${observedAt}`,
      synced_at: observedAt,
      spendable,
    },
  };
}

test('quote outcome completes only when exact submitted quote delta is observed', () => {
  const [outcome] = deriveQuoteOutcomeRecords({
    submissions: [submittedResult('quote-settled')],
    commands: [exactOutCommand('quote-settled')],
    inventorySnapshots: [
      inventorySnapshot('2026-04-02T18:13:00.000Z', {
        [BTC.assetId]: '0',
        [EURE.assetId]: '100000000000000000000',
      }),
      inventorySnapshot('2026-04-02T18:13:33.000Z', {
        [BTC.assetId]: '37014',
        [EURE.assetId]: '78999978799978799978',
      }),
    ],
    btcAsset: BTC,
    eureAsset: EURE,
    now: '2026-04-02T18:14:00.000Z',
  });

  assert.equal(outcome.outcome_status, 'completed');
  assert.equal(outcome.attribution_status, 'heuristic_match');
  assert.equal(outcome.attributed_inventory_delta.delta_units[BTC.assetId], '37014');
  assert.equal(outcome.attributed_inventory_delta.delta_units[EURE.assetId], '-21000021200021200022');
});

test('submitted quote without settlement stays submitted before the deadline window expires', () => {
  const [outcome] = deriveQuoteOutcomeRecords({
    submissions: [submittedResult('quote-submitted', '2026-04-02T18:13:30.000Z')],
    commands: [exactOutCommand('quote-submitted')],
    inventorySnapshots: [
      inventorySnapshot('2026-04-02T18:13:00.000Z', {
        [BTC.assetId]: '0',
        [EURE.assetId]: '100000000000000000000',
      }),
    ],
    btcAsset: BTC,
    eureAsset: EURE,
    now: '2026-04-02T18:13:45.000Z',
  });

  assert.equal(outcome.outcome_status, 'submitted');
  assert.equal(outcome.attribution_status, 'unattributed');
  assert.equal(outcome.attributed_inventory_delta, null);
});

test('submitted quote without settlement becomes not filled only after deadline and later inventory evidence', () => {
  const [outcome] = deriveQuoteOutcomeRecords({
    submissions: [submittedResult('quote-not-filled', '2026-04-02T18:13:30.000Z')],
    commands: [exactOutCommand('quote-not-filled')],
    inventorySnapshots: [
      inventorySnapshot('2026-04-02T18:13:00.000Z', {
        [BTC.assetId]: '0',
        [EURE.assetId]: '100000000000000000000',
      }),
      inventorySnapshot('2026-04-02T18:15:40.000Z', {
        [BTC.assetId]: '0',
        [EURE.assetId]: '100000000000000000000',
      }),
    ],
    btcAsset: BTC,
    eureAsset: EURE,
    now: '2026-04-02T18:15:40.000Z',
  });

  assert.equal(outcome.outcome_status, 'not_filled');
  assert.equal(outcome.outcome_reason, 'deadline_elapsed_without_settlement');
  assert.equal(outcome.outcome_observed_at, '2026-04-02T18:15:40.000Z');
  assert.equal(outcome.payload.evidence.latest_inventory_observed_at, '2026-04-02T18:15:40.000Z');
  assert.equal(outcome.attributed_inventory_delta, null);
});

test('older unrelated inventory movement does not block later no-fill expiry', () => {
  const [outcome] = deriveQuoteOutcomeRecords({
    submissions: [submittedResult('quote-after-old-move', '2026-04-02T18:20:00.000Z')],
    commands: [exactOutCommand('quote-after-old-move')],
    inventorySnapshots: [
      inventorySnapshot('2026-04-02T18:13:00.000Z', {
        [BTC.assetId]: '0',
        [EURE.assetId]: '100000000000000000000',
      }),
      inventorySnapshot('2026-04-02T18:13:33.000Z', {
        [BTC.assetId]: '1',
        [EURE.assetId]: '99999999999999999999',
      }),
      inventorySnapshot('2026-04-02T18:22:00.000Z', {
        [BTC.assetId]: '1',
        [EURE.assetId]: '99999999999999999999',
      }),
    ],
    btcAsset: BTC,
    eureAsset: EURE,
    now: '2026-04-02T18:22:00.000Z',
  });

  assert.equal(outcome.outcome_status, 'not_filled');
  assert.equal(outcome.outcome_reason, 'deadline_elapsed_without_settlement');
  assert.equal(outcome.payload.evidence.latest_inventory_observed_at, '2026-04-02T18:22:00.000Z');
});

test('ambiguous inventory movement is not counted as completed settlement', () => {
  const outcomes = deriveQuoteOutcomeRecords({
    submissions: [
      submittedResult('quote-a', '2026-04-02T18:13:30.000Z'),
      submittedResult('quote-b', '2026-04-02T18:13:31.000Z'),
    ],
    commands: [
      exactOutCommand('quote-a'),
      exactOutCommand('quote-b'),
    ],
    inventorySnapshots: [
      inventorySnapshot('2026-04-02T18:13:00.000Z', {
        [BTC.assetId]: '0',
        [EURE.assetId]: '100000000000000000000',
      }),
      inventorySnapshot('2026-04-02T18:13:33.000Z', {
        [BTC.assetId]: '37014',
        [EURE.assetId]: '78999978799978799978',
      }),
    ],
    btcAsset: BTC,
    eureAsset: EURE,
    now: '2026-04-02T18:14:00.000Z',
  });

  assert.deepEqual(
    outcomes.map((entry) => entry.outcome_status),
    ['awaiting_outcome', 'awaiting_outcome'],
  );
  assert.deepEqual(
    outcomes.map((entry) => entry.attribution_status),
    ['ambiguous', 'ambiguous'],
  );
});